Affiliation:
Medical Research Council Clinical Trials Unit, London, United Kingdom

X

Mike B. Gravenor,

Affiliation:
School of Medicine, University of Swansea, Swansea, United Kingdom

X

Andrew J. Leigh Brown,

Affiliation:
Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, United Kingdom

X

Simon D.W. Frost

Affiliations:
Department of Pathology, University of California San Diego, La Jolla, California, United States of America,
Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom